# PopStar with Undo vs AR Blocks

The clearest difference is review sentiment: AR Blocks at 100% against PopStar with Undo's 33%. AR Blocks also leads on in-app purchases (none vs 1) and ads (none vs shown). PopStar with Undo's advantage is iOS requirement (16.6 vs 18.0). On monetization model and device support there is nothing between them.

PopStar with Undo costs $4.00 and AR Blocks $0.99 up front. PopStar with Undo sells 1 one-off in-app purchase. AR Blocks asks for nothing beyond the download.

PopStar with Undo ships an update every 11 months, AR Blocks every 3 months. The most recent releases landed on October 2, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | PopStar with Undo | AR Blocks |
| --- | --- | --- |
| Price | $4.00 | **$0.99** |
| Rating | **[4.7 (6 ratings)](https://appshunter.io/ios/app/popstar-with-undo/id598512361/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 33.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 11 months | **Every 3 months** |
| Monetization | Paid | Paid |
| Size | 21 MB | 20 MB |
| Requires iOS | **16.6** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Oscar Tsang](https://appshunter.io/developer/416987065) | [Virtual GS](https://appshunter.io/developer/302652687) |

## What reviewers say

### PopStar with Undo

[App page](https://appshunter.io/ios/app/popstar-with-undo/id598512361)

This highly addictive puzzle game offers two distinct modes: Classic, where you clear blocks to meet level targets without a time limit, and Endless, which challenges you to clear as many blocks as possible against the clock. Features include an undo button and customizable block colors.

**Highlights:** Two game modes: Classic and Endless, Tap two or more same-colored blocks, No time limit in Classic mode, Time-based challenges in Endless mode, Undo button, Customizable block colors

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove advertisement | $1.99 | one-time |


### AR Blocks

[App page](https://appshunter.io/ios/app/ar-blocks/id1275637851)

Create and build virtual structures in augmented reality using a variety of blocks and textures. You can even use your own photos for custom designs. Share your creations or export 3D models.

**Highlights:** Build AR structures in the air, Wide range of block shapes and sizes, Use custom textures or your own photos, Export 3D models, Share screenshots of creations

**In-app purchases:** none


## Frequently asked questions

### Is PopStar with Undo free?

PopStar with Undo costs $4.00, and also offers in-app purchases.

### Is AR Blocks free?

AR Blocks costs $0.99, with no in-app purchases.

### Do PopStar with Undo or AR Blocks have ads?

PopStar with Undo shows ads; AR Blocks does not.

### Which is updated more often, PopStar with Undo or AR Blocks?

PopStar with Undo ships an update every 11 months, and AR Blocks every 3 months. Most recently, PopStar with Undo was updated on October 2, 2026 and AR Blocks on October 12, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*